Building lath



Nov. 10, 1925- 1,561,196,

J. A. WALLE R 7 BUILDING LATH Filed Sept 13. 1921 ZnveaZar 7 70%7z J. WZiZZe) Patented Nov. 10, 1925.

UNITED STATES PATENT, OFFICE.

JOHN A. WALLER, OF LOS ANGELES, CALIFORNIA, ASSIGNOR T0 WALTER J. LUM- BLEAU, 015 LOS ANGELES, CALIFORNIA.

BUILDING LATH.

To all who-m it may concern:

Be it known that I, JOHN A. VVALLER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Building Laths, of which the following is a specification.

My invention relates to building lath, and is particularly adapted to be attached to the studding of buildings both on the inside and outside in order to form a suitable key baching to receive a plaster or cement coating.

The object of my invention is to provide a simple, durable, efficient and economical lathing which may be readily secured to the building studding by any one capable of handling tools, thereby obviating the necessity of employing skilled lathers for the purpose, and thus reducing the cost of application to a minimum.

A further object of my invention is to provide a lathing which may be formed of cheap wood without waste, and readily bent either transversely or longitudinally to conform to various configurations of the building walls.

Other objects of my invention will be more fully disclosed in the following description, will be pointed out in the claims, and will be embodied in the accompanying drawings, in which:

Fig. 1 is a face view of a fragment of lath, embodying my invention.

Fig. 2 is an edge view of the same.

Fig. 3 is an enlarged transverse section taken on the line 3-3 of Fig. 1.

My lath comprises a slab of material 5, of suitable length, breadth and thickness, which is preferably formed from a wood veneering, skived from a log, thus eliminating all waste of material as well as providing flexibility to the slab; and is provided with a plurality of groups of longitudinally disposed slots arranged in parallel relation and spaced equally apart throughout the breadth of the slab.

The groups of slots 6 are arranged in rows throughout the length of the slab and following the grain thereof, and are spaced equally apart; and the groups of slots 7 are also arranged in rows and spaced equally apart in staggered and overlapping relation with the slots of groups 6, as clearly shown in Fig. 1 of the drawings. By this arrangement of slots the warping and buckling of the material is prevented, its bracing strength preserved, and-staggered keyways are formed for the reception of theplaster or cement coating.

The slots 6 and 7 are formed in the slab 5 bymeans of gang saws or milling cutters and the walls of said slots are preferably tapered inwardly from the inside surface 8 to the outside surface 9 of said slab, as shown more clearly at 10 in Fig. 3 of the drawings, thus forming dovetailed keyways for the plaster and a perfect lock for the same.

For the inside walls of the building my lathing may be used as described and secured to the studding in the usual manner. For use on the outside of the building a sheet of tar paper or the like may be secured to the inside face 8 of the slab 5 by anysuitable means, as for instance by means of strips of tar pitch 12 spaced suitably apart and transversely of the slab, and in order that said tar paper may be overlapped when the slabs are applied, it is arranged so as to project slightly beyond one of the ends and one of the sides of said slab, as clearly shown in Fig. 1 of the drawings.

By the use of my lathing as above de scribed, it will be obvious that great economy in the expense of labor and material will be attained, and that a structure of unusual strength and rigidity will be had, moreover by forming the slabs of wood veneer they will be unusually pliable and will readily lend themselves to various curvatures and angles of the building structure.

What I claim is:

1. A plaster wall board comprising a thin flexible slab of wood, said board provided with a plurality of slots running with the grain, and said slots arranged in staggered and overlapping relation, whereby the board is readily capable of expansion and contraction.

2. A plaster wall board comprising a thin flexible slab of wood, provided with a plurality of groups of slots running with the grain of said wood slab in parallel relation, the slots of one group being arranged in staggered and overlapping relation With the slots of an adjacent group.

3. A plaster Wall board comprising a thin flexible sheet of wood readily-expansible and contractible, provided with a plurality of groups of slots disposed in substantially parallel relation with the grain of said flexible Wood sheet, the slots of one group being arranged in staggered and overlapping relation with the slots of an adjacent group.

In Witness that I claim the foregoing I have hereunto subscribed my name this 30th day of August, 1921.

JOHN A. WALLER. 

